Contacts of the strand formed by residues 228 - 235 (chain Q) in PDB entry 3K9Q


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with LEU 228 (chain Q).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156Q  LEU*     4.4    14.8    -      -       +      -
    160Q  ALA*     4.0    15.9    -      -       +      -
    169Q  LEU*     3.9    20.4    -      -       +      -
    172Q  GLY*     3.5    25.6    -      -       -      +
    214Q  ALA*     3.3    30.3    +      -       +      +
    215Q  LYS*     3.6     8.0    -      -       -      +
    217Q  ILE*     3.8    24.8    -      -       +      +
    224Q  ILE*     4.0    15.3    +      -       +      -
    226Q  GLY*     4.5     3.7    -      -       -      +
    227Q  LYS*     1.3    90.0    +      -       -      +
    229Q  ASP*     1.3    65.3    +      -       -      +
    245Q  LEU*     3.9    17.0    -      -       +      -
    247Q  VAL*     4.5     1.3    -      -       +      -
    300R  MET*     3.3     6.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 229 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172Q  GLY      3.4     5.1    +      -       -      -
    173Q  LEU*     3.3    14.3    -      -       +      -
    174Q  MET*     2.8    25.5    +      -       -      +
    211Q  THR      5.1     1.0    -      -       -      +
    214Q  ALA*     3.5    12.3    -      -       -      -
    215Q  LYS*     3.4    43.1    +      -       -      +
    228Q  LEU*     1.3    75.7    -      -       -      +
    230Q  GLY*     1.3    77.5    +      -       -      +
    298R  ARG*     3.0    30.5    +      -       +      +
    299R  VAL      5.7     0.5    -      -       -      +
    300R  MET*     3.5    16.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 230 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173Q  LEU*     4.5     0.2    -      -       -      -
    174Q  MET*     3.1    21.7    -      -       -      +
    211Q  THR      3.7    15.2    +      -       -      +
    214Q  ALA*     4.1     0.9    -      -       -      +
    229Q  ASP*     1.3    95.5    +      -       -      +
    231Q  GLY*     1.3    58.5    +      -       -      -
    298R  ARG*     3.5    28.1    +      -       -      +
    309R  LYS*     4.5     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 231 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174Q  MET*     3.2    10.0    +      -       -      +
    175Q  THR*     3.5     7.1    +      -       -      -
    176Q  THR*     3.1    25.1    +      -       -      +
    209Q  ASN      3.8     6.3    -      -       -      -
    211Q  THR*     3.7    14.4    -      -       -      -
    230Q  GLY*     1.3    74.3    -      -       -      -
    232Q  ALA*     1.3    60.9    +      -       -      -
    298R  ARG*     4.3     9.9    -      -       -      +
    309R  LYS*     4.7     2.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 232 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175Q  THR*     4.9     1.1    -      -       -      -
    176Q  THR*     3.3    22.7    -      -       +      +
    178Q  HIS*     4.9     7.4    -      -       +      -
    208Q  PRO*     3.4     5.2    -      -       -      +
    209Q  ASN*     2.8    43.5    +      -       +      +
    210Q  SER      4.5     3.1    -      -       -      +
    211Q  THR*     4.1     9.0    -      -       +      -
    231Q  GLY*     1.3    75.0    -      -       -      +
    233Q  GLN*     1.3    72.2    +      -       -      +
    234Q  ARG*     4.9     7.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 233 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175Q  THR*     4.1    16.1    -      -       +      +
    176Q  THR      2.9     7.7    +      -       -      +
    177Q  ILE*     3.5     5.9    -      -       -      -
    178Q  HIS      2.8    24.3    +      -       -      -
    206Q  ILE*     3.8    16.5    -      -       +      +
    207Q  ILE      3.5     1.1    -      -       -      -
    208Q  PRO*     3.1    29.7    -      -       -      +
    232Q  ALA*     1.3    81.2    +      -       -      +
    234Q  ARG*     1.3    61.9    +      -       -      +
    235Q  VAL*     3.6     6.8    +      -       +      +
    177R  ILE*     4.2    16.4    -      -       +      -
    242R  LEU*     3.2    23.6    -      -       -      +
    244R  GLU*     2.8    24.7    +      -       -      +
    296R  GLN*     3.3    14.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 234 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178Q  HIS*     3.2    29.0    +      -       -      +
    179Q  ALA      3.6    15.0    -      -       -      -
    180Q  TYR*     4.8     2.0    -      -       -      -
    181Q  THR*     2.9    26.9    +      -       -      +
    183Q  ASP*     3.5    14.3    +      -       -      -
    184Q  GLN*     2.7    52.6    +      -       -      +
    198Q  ARG*     4.9     4.5    -      -       +      +
    202Q  ALA      5.7     0.4    -      -       -      -
    205Q  ASN      3.4     5.8    -      -       -      +
    207Q  ILE*     2.8    46.5    +      -       +      +
    209Q  ASN*     4.4    20.4    +      -       +      +
    232Q  ALA*     4.9     7.7    -      -       +      +
    233Q  GLN*     1.3    70.9    -      -       -      +
    235Q  VAL*     1.3    59.2    +      -       -      +
    337Q  GOL      4.2    22.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 235 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177Q  ILE*     3.7    33.9    -      -       +      -
    178Q  HIS      2.9    13.1    +      -       -      +
    179Q  ALA*     4.0     0.2    -      -       -      -
    180Q  TYR*     3.5    19.3    +      -       -      +
    202Q  ALA      4.7     1.8    -      -       -      -
    205Q  ASN      3.9     0.9    -      -       -      -
    206Q  ILE*     4.3     9.2    -      -       +      -
    233Q  GLN      3.9     6.5    -      -       -      +
    234Q  ARG*     1.3    77.5    -      -       -      +
    236Q  PRO*     1.3    70.7    -      -       +      +
    237Q  VAL*     2.8    14.3    +      -       +      +
    177R  ILE*     4.2     9.2    -      -       +      -
    206R  ILE*     3.8    23.1    -      -       +      -
    235R  VAL*     4.0    25.4    -      -       +      -
    236R  PRO*     4.8     1.1    -      -       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il